Hi John
Thanks for the response. I have run all those diagnostics, and as best I
can tell the IB fabric is OK. I have a cluster of 49 nodes (48 clients +
server) and the fabric passes all the tests. There is 1 warning:
I- Subnet: IPv4 PKey:0x7fff QKey:0x0b1b MTU:2048Byte rate:10Gbps SL:0x
Tony, start at a low level. Is the Infiniband fabric healthy?
Run
ibstatus on every node
sminfo on one node
ibdiagnet on one node
On Sun, 23 Aug 2020 at 05:02, Tony Ladd via users
wrote:
> Hi Jeff
>
> I installed ucx as you suggested. But I can't get even the simplest code
> (ucp_client_server
